docs: def show(feed):
      """
      Show detailed feed information
  
      """
      ecode = 0
      try:
          feedmeta = anchore_feeds.load_anchore_feedmeta()
          if feed in feedmeta:
              result = {}
              groups = feedmeta[feed].get('groups',{}).values()
              result['name'] = feed
              result['access_tier'] = int(feedmeta[feed].get('access_tier'))
              result['description'] = feedmeta[feed].get('description')
              result['groups'] = {}
              if 'subscribed' not in feedmeta[feed]:
                  result['subscribed'] = False
              else:
                  result['subscribed'] = feedmeta[feed]['subscribed']
  
              for g in groups:
                  result['groups'][g['name']] = {
                      'access_tier': int(g.get('access_tier')),
                      'description': g.get('description'),
                      'last_sync': datetime.datetime.fromtimestamp(g.get('last_update')).isoformat() if 'last_update' in g else 'None'
                  }
  
              anchore_print(result, do_formatting=True)
          else:
              anchore_print_err('Unknown feed name. Valid feeds can be seen withe the "list" command')
              ecode = 1
      except Exception as err:
          anchore_print_err('operation failed')
          ecode = 1
  
      sys.exit(ecode)